The rectangular coordinate of the given polarcoordinate will be (- 3.5,6.062).
A pair of numbers that employ the horizontal and vertical distinctions from the two reference axes to represent a point's placement on a coordinate plane. typically expressed by the x-value and y-value pairs (x,y).
Coordinates are always written in the form of small brackets the first term will be x and the second term will be y.
As per the given polar coordinates,
(7, 2π/3)
It is known that, x = r cosθ and y = r sinθ.
x = 7 cos(2π/3) and y = 7 sin(2π/3)
x = -3.5 and y = 6.062
Hence "The rectangular coordinate of the given polarcoordinate will be (- 3.5,6.062)".
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To find the height of the tree, we can use trigonometry and the given information.
Let's denote the height of the tree as h.
1. We have the length of the shadow, which is 150 ft.
2. We also have the angle of elevation from the tip of the shadow to the top of the tree, which is 30°.
We can use the tangent function to find the height of the tree:
tangent(angle) = opposite/adjacent
In this case, the opposite side is the height of the tree (h) and the adjacent side is the length of the shadow (150 ft).
So, we can write the equation as:
tangent(30°) = h/150
Now, let's solve for h:
tangent(30°) = h/150
tan(30°) = h/150
√3/3 = h/150
Cross-multiplying:
3h = 150√3
h = 50√3
To find the approximate value, we can use a calculator:
h ≈ 50 * 1.732 ≈ 86.6 ft
Rounded to the nearest foot, the height of the tree is approximately 87 ft.
Therefore, the correct answer is option B: 87 ft.
Answer:
Step-by-step explanation:
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Part A: What is the solution to the pair of equations represented by p(x) and f(x)? (3 points)
Part B: Write any two solutions for f(x). (3 points)
Part C: What is the solution to the equation p(x) = g(x)? Justify your answer. (4 points)
Answer:
PART A:
(3,1)
PART B:
(1,-3) and (3,1)
PART C:
(1,3)
Step-by-step explanation:
PART A:
The pair of solution corresponding to the pair of equations represented by p(x) and f(x) is the point of intersection of the graph of p(x) and f(x).
So, clearly from the figure given we have the point of intersection as:
(3,1)
PART B:
Any two solutions of f(x) are the point from where the graph of f(x) passes.
Hence, the two points through which the graph of f(x) pass is:
(1,-3) and (3,1).
PART C:
The solution of the equation:
p(x)=g(x) is the point of intersection of the the graph of the function p(x) and g(x).
So, the points where p(x) and g(x) meet is:
(1,3)